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Finding the Fourth Proportional to 150,359.67, 207,496.21 and 82,380.87

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Solution

The fourth proportional to 150,359.67, 207,496.21 and 82,380.87 is: 113,685.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,359.67 : 207,496.21 = 82,380.87 : x
  2. Step 2: Convert to fraction form
    150,359.67/207,496.21 = 82,380.87/x
  3. Step 3: Cross multiply
    150,359.67x = 207,496.21 × 82,380.87
  4. Step 4: Simplify right side
    150,359.67x = 17,093,718,301.50
  5. Step 5: Solve for x
    x = 17,093,718,301.50/150,359.67
  6. Step 6: Final answer
    x = 113,685.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.